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external force on her? If the sprinter accelerates at that rate for 20.00 m and then maintains that velocity for the remainder of a 100.00-m dash, what will her time be for the race?

external force on her? If the sprinter accelerates at that rate for 20.00 m and then maintains that velocity for the remainder of a 100.00-m dash, what will her time be for the race?

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The class I'm taking is physics for scientists and engineers!

I am completely stuck. Need help. I have attached the problem.  Please view BOTH attachments before answering. If you can please explain your answer so I can fully understand.  Thank you!

Andrea, a 63.0-kg sprinter, starts a race with an acceleration of 4.200 m/s². What is the net
Transcribed Image Text:Andrea, a 63.0-kg sprinter, starts a race with an acceleration of 4.200 m/s². What is the net
external force on her? If the sprinter accelerates at that rate for 20.00 m and then maintains that velocity for the remainder of a 100.00-m dash, what will her time be for the race?
Transcribed Image Text:external force on her? If the sprinter accelerates at that rate for 20.00 m and then maintains that velocity for the remainder of a 100.00-m dash, what will her time be for the race?
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